28879476 has 48 divisors (see below), whose sum is σ = 71984640. Its totient is φ = 8991360.

The previous prime is 28879453. The next prime is 28879483. The reversal of 28879476 is 67497882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9450 + ... + 12126.

It is an arithmetic number, because the mean of its divisors is an integer number (1499680).

Almost surely, 2^28879476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28879476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35992320).

28879476 is an abundant number, since it is smaller than the sum of its proper divisors (43105164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28879476 is a wasteful number, since it uses less digits than its factorization.

28879476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744 (or 2742 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 28879476 is about 5373.9627836449. The cubic root of 28879476 is about 306.8054732893.

The spelling of 28879476 in words is "twenty-eight million, eight hundred seventy-nine thousand, four hundred seventy-six".